Leica Summarit-M 90 mm f/2.5 specs

Angle of view (diagonal, horizontal, vertical) - For 35 mm (24 x 36 mm) : 27°, 22,6°, 15,2°, for LEICA M8 (18 x 27 mm): 20,4°, 17.1°, 11.4°, corresponds to a focal length of approx. 120 mm with 35 mm-format

Optical design:
Number of lenses/groups: 5 / 4
Focal length: 91.0 mm
Position of entrance pupil: 54,8 mm (related to the first lens surface in light direction)

Distance setting:
Focusing range: 1,0 m to endless
Scales: Combined meter/feet graduation
Smallest object field/Largest reproduction ratio:
For 35 mm, approx. 213 x 320 mm/1:8.9;
for LEICA M8, approx. 160 x 240 mm/1:8.9

Aperture:
Setting/Function: Preset, with click-stops, half values available
Lowest value: 16

Bayonet - Leica M quick-change bayonet with 6 bit lens identification bar code for digital M models

Filter mount/Lens hood - Non-rotating, internal thread for screw-on filterssize E46, external thread for lens hood, protection ring for external thread included in delivery, lens hood available as accessory

Dimensions and weight:
Length: approx. 66.5 mm
Largest diameter: approx. 55 mm
Weight: approx. 360g